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Giant Rydberg excitons in CuO probed by photoluminescence excitation spectroscopy
Marijn A. M. Versteegh, Stephan Steinhauer, Josip Bajo +7
Rydberg excitons are, with their ultrastrong mutual interactions, giant optical nonlinearities, and very high sensitivity to external fields, promising for applications in quantum…
Proximitized Josephson junctions in highly-doped InAs nanowires robust to optical illumination
Lily Yang, Stephan Steinhauer, Elia Strambini +7
We have studied the effects of optical-frequency light on proximitized InAs/Al Josephson junctions based on highly n-doped InAs nanowires at varying incident photon flux and at thr…
Ultrafast all-optical gated amplifier based on ZnO nanowire lasing
Marijn A. M. Versteegh, Peter J. S. van Capel, Jaap I. Dijkhuis
We present an ultrafast all-optical gated amplifier, or transistor, consisting of a forest of ZnO nanowire lasers. A gate light pulse creates a dense electron-hole plasma and excit…
Bright nanoscale source of deterministic entangled photon pairs violating Bell's inequality
Klaus D. Jöns, Lucas Schweickert, Marijn A. M. Versteegh +6
Global, secure quantum channels will require efficient distribution of entangled photons. Long distance, low-loss interconnects can only be realized using photons as quantum inform…
Overcoming power broadening of the quantum dot emission in a pure wurtzite nanowire
Michael E. Reimer, Gabriele Bulgarini, Reinier W. Heeres +6
One of the key challenges in developing quantum networks is to generate single photons with high brightness, purity, and long temporal coherence. Semiconductor quantum dots potenti…
Observation of strongly entangled photon pairs from a nanowire quantum dot
Marijn A. M. Versteegh, Michael E. Reimer, Klaus D. Jöns +5
A bright photon source that combines high-fidelity entanglement, on-demand generation, high extraction efficiency, directional and coherent emission, as well as position control at…